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2 Sheets Sheet l. J. C. DICKEY.

H Ore Mill. No. 28,163. Patented Ma y 8, 1860.

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W 00 Q I gwitnesses: Inventor b AM. PHOTO'LITHILCO. N-V.(DSBORN'S PROCESS.)

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Ore Mill.

No. 28,163. Patented May 8, 1860.

Witnesses= a9 (flwrcmm, Inventor. WWW I fiQ' AM. PHOTO-LITHQCONX. (OSBORNE'S PROCESS) UNITED STATES PATENT OFFICE.

JULIUS C. DIGKEY, OF SARATOGA SPRINGS, NEW YORK.

MACHINERY FOR CRUSHING QUARTZ, 86C.

Specification of Letters Patent No. 28,163, dated May 8, 1860.

To all whom it may concern:

Be it known that I, JULIUS C. DIoKnY, of Saratoga Springs, in the county of Saratoga and State ofNew York, have inventeda new and Improved Mode of Constructing Machines for Obtaining Gold from Quartz Rock and Earth; and I do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature of my invention consists in the employment of a hollow revolving cone on a stationary cone made to project above the stationary cone sufficient to form a mortar on the top of the said stationary cone, in combination with stampers or their equiva lentssecured in, and working in the said mortar for the purpose of crushing, grinding and pulverizing quartz rock containing gold. Second, making one or more channels on the base of a stationary cone-or its equivalentin combination with a hollow revolving coneor its equivalent-and mak ing on the base and under side of the said revolving cone projections to work in and on the side of one or more channels, on the base of said stationary cone for the purpose of grinding and pulverizing quartz rock and earth containing gold, and forcing the said pulverized rock and earth into the bottom of the said channels in contact with quick-silver, so that the gold can be secured; and also for the purpose of thoroughly working quartz rock and earth so as to secure all the gold. Third, the combination of stampersor their equivalents-working in a mortar made by a hollow revolving cone projecting above the top of a stationary cone with the pulverizing surfaces made by the said cones coming in contact with each other, and pro jections made on the under side of the said revolving cone working in, and on the side of one or more channels on the base of the said stationary cone, for the purpose of crushing, grinding and pulverizing quartz rock and earth containing gold.

Figure 1 shows a perspective view, and Fig. 2 a cross section.

In Fig. A shows the stationary cone, 6 the revolving cone, 6 the Stamper, and s the stamper frame.

Similar letters and figures in Fig. 1 refer to like parts.

My additional improvements in quartz crushers, &c., consists in making on the under side of the revolving cone circular projections to work in and on the sides of one or more channels made on the base of the stationary cone. These projections produce an important result, and are three fold in their effect. First, they agitate the quartz and earth mixed with water in the channels, which agitation has a tendency to separate the gold from earth, sulfur, &c., so that the gold can be amalgamated and secured. It is designed to make projections on the projections with the view of a more thorough agitation of the quartz, &c., and to make one or more projections very thin so that they will assist in amalgamation; and to use projections in one or more channels where balls are not used. Second, these projections have also a tendency to pulverize and grind the quartz as it passes out of channel No. 1 into channel No. 2 between the side of the channel and the said projection, as shown by the dotted lines. This result of the projection is a very important one, as it secures the perfect pulverization of the quartz.

The sides of the channels and projections where they come in contact with each other may be made partly or in whole with a grinding surface. The said projections are made to press or grind on the sides of the channels by means of the set screws 0, which set screws also adjust the revolving cone so as to press or grind on the stationary cone. The said projections have also a third and very important result; which result is to force the pulverized rock and earth containing gold into the bottoms of the channels in contactwith quicksilver, so that the gold can be amalgamated and secured; and no, quartz, &c., can pass out of one channel into an other without being forced into the bottoms of the said channels in contact with the quick-silver.

It is well known that much gold in small particles is lost by its passing ofi in water before it is brought in contact with quicksilver, and it is partly with the View of saving these small particles of gold that the said projections are made to force the gold in contact with quicksilver; and if pulverized rock and water bearing gold are allowed to run into the mortar it-the gold-will as a matter of course, before it passes through the machine be brought in contact with the quick-silver and be amalgamated. These it made in or secured to the flange of the revolving cone between channel No. 1 and channel No. 3 so that the gold can be removed from the channels when. desirable.

These projections produce the same effect' but to a much greater degreethat the round balls do which were referred to in my patent granted May 8th 1860.

I make the stationary and revolving cones of such form and size as will be best adapted to the purposes for which they are intended. On the base of the stationary cone as shown at Figs. 1, 2 and 3 I make circular channels. Channels Nos. 1 and 2 are furnished with quick-silver; and as the pulverized rock or earth passes down from the mortar between the cones as shown by the dotted lines itthe pulverized rock and earthis forced into the bot-tom of channel N0. 1 by the revolving cone 6 and in contact with the quick-silver so that the gold can be secured. When the pulverized rock, water, &c., in channel No. 1 rises up to the top of the projection which separates itchannel No. 1from channel No. 2 it passes over into channel No. 2 between the grinding or pulverizing surfacesas shown by the dotted linesmade by the projection on the revolving cone working against the side of chan nel No. 2. The balls 0 0 secured under the revolving cone and working in channels Nos. 1 and 2 are for the purpose of more finely pulverizing the rock, &c., and bringing the gold in contact with the quick-silver.

I contemplate in some cases making the channels wider and employing two or more balls under the revolving cone in one or more channels, in a line with each other, with a slight projection between the balls to keep the quick-silver in a proper position. Quartz rock and earth containing gold can be pulverized and worked as much as may be necessary to secure all the gold by increasing the number of the channels, as the gold that is not secured in the first channel will be secured in one or more succeeding channels.

Channel No. 3 in which the ball a is located is raised higher up on the stationary cone than the other channels, and the weight of the revolving cone 6 rests upon the balls in this channel. This channel is furnished with oil so that motion may be given to the revolving cone with less power. In a recess in the revolving cone 6 above the ball 12 the adjustable block a is located and is ad- That part of channel m nearest the out-.

side the :base of the stationary cone is made wider, and to extend higher up' for the purpose of making an opening so that the water 620. can pass out continually-when the machine is in motion-into the circular inclined channel I. .In this inclined channel a projection X is made for the purpose of retaining quick-silver to secure any gold that may be in the water earth, &c., as it passes out of the machine and through this channel on to the ground. I contemplate making circular channels on the outside base of the stationary cone, and alsoto make them on the inside of channel No. 3, with suitable outlets and inlets.

The projection h on the revolving cone 6 is for the purpose of hitching a horsewhen horse power is usedt-o give motion to the revolving cone. When steam power is used I make cogs on the under side of the revolving cone as shown at letter j to connect with suitable gearing secured to the base of the stationary cone for the purpose of giving the revolving cone the desired mot-ion.

I contemplate making the cones with, and without a grinding surface, and with reference to the kind of material to be operated upon. The stamper frame 5 I insert in a recess on the top of the stationary cone, and I also contemplate making it with a screw thread so asto screw it into the said cone with a projection on its top reaching over and on the top of the revolving cone so as to secure the said revolving cone more firmly on the said stationary cone. The stamper frame 8, I make with projections through which projections the stamper 6 passes and works in.

On the inside of the revolving cone as shown at letter g, I make cogs to fit the cog wheel k, secured to the stamper e. I also make on the inside of the said revolving cone below the cogs an incline plane, or planes, which incline plane passes under the cog wheelwhen the revolving cone is in motionsecured to stamper e and gives the said stamper a jumping motion, so that the said stamper will fall on the rock and crush it. The revolving cone also gives the stamper a continuous rotary motion so that when it does not receive a jumping motion by the action of the incline plane for the purpose of crushing the quartz rock it is made to grind and pulverize the rock. I

design to make the bottom or face of the stamper with a grinding surface; also with projections, circular or otherwise; and with reference to the kind of material to be operated upon.

When quartz rock not sufliciently hard to require the use of the stampers is operated upon, and also when clay cement, &c., is worked in the machine I discontinue the use of the stampers, and make the cones with a grinding surface, with the stationary cone extending farther up into the revolving cone.

The object of this invention is to combine in one machine the essential qualities of the stamping machines now in common use, the quartz mill and the Arastar, or Chihan mill, so as to work quartz rock and earth all that may be necessar in order to obtain all the gold at one and t e same time.

Operation: When quartz rock of suitable size is thrown into the mortar the action of the stamper crushes and grinds the rock suf' ficiently fine so that it will fall into and between the grinding or pulverizing surfaces of the cones as shown by the dotted lines, and is forced by the action of the revolving cone into the bottom of channel No. l, and in contact with the quick-silver so that the gold can be securedand when the said channel No. 1 becomes full the quartz rock or earth flows over into channel No. 2 between the grinding or pulverizing surfaces as shown by the dotted lines where it is more thoroughly pulverized and again forced in contact with quick-silver in the bottom of channel No. 2-this process of forcing the rock and earth out of one channel into another is repeated until all the gold is secured.

When it is desirable to remove the gold water is allowed to run into the mortar until the gold is washed from all impurities, when the machine is stopped running and the gold is removed from the channels. This machine may be used to advantage in lead and other mines, and in which case any number of balls may be thrown loosely into the channels between the arms L on the revolving cone 1) and forced around in the said channels by the said arms, and in which case also the use of the circular inclined channel may be discontinued, if desirable.

I claim- A stamper, or stampers working in a mortar made on the top of a stationary cone by a hollow revolving cone working on, and projecting above the top of the said stationary cone, with the pulverizing surfaces made by the said cones coming in contact with each other, in combination with the projections Z Z, made on the base of the said revolving cone working in and on the side of one or more channels made on the base of stationary cone, for the urpose of crushing, grinding and pulverizing quartz rock and earth containing gold, and forcing the said pulverized rock and earth into the bottoms of the said channels in contact with quicksilver for the purpose of securing the gold.

JULIUS C. DICKEY.

Witnesses:

B. I. NALLE, J. A. DEEBLE. 

